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Ponds Freeze in Winter -- Why Doesn't the Ocean?

In this activity, learners explore how salt water freezes in comparison to fresh water. Use this experiment to consider how pond animals survive cold winters in comparison to animals that live in the ocean. This resource includes information about freezing points as well as examples of how different animals respond to the winter cold.

Keywords:: Social Sciences, Hibernate, Liquids, NSDL, Biological Science, Ecology, Ice, Salinity, Physics, Saltwater, Animals, Conducting Investigations, Pond, Chemistry, Solids, Earth System Science, Atmospheric Science, Asking Questions, Forestry and Agriculture, Life Science, Water, Physical Science, Temperature, Geoscience, Anthropology, Oceanography, Freshwater, General Science, Frozen, Weather and Climate, Winter, Oceans and Water, Solutions, Changes of Phase, Ocean, Education, Heat and Temperature, Mechanisms of Evolution, Formulating Explanations, Freeze